diff --git a/Cargo.lock b/Cargo.lock
index 172e2d78..e57779cb 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -741,9 +741,6 @@ version = "0.6.3"
 dependencies = [
  "cc 1.0.25 (registry+https://github.com/rust-lang/crates.io-index)",
  "regex 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.80 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_derive 1.0.80 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_json 1.0.33 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
diff --git a/lib/Cargo.toml b/lib/Cargo.toml
index 5e0bbb5c..78829420 100644
--- a/lib/Cargo.toml
+++ b/lib/Cargo.toml
@@ -20,9 +20,6 @@ include = [
 
 [dependencies]
 regex = "1"
-serde = "1.0"
-serde_json = "1.0"
-serde_derive = "1.0"
 
 [build-dependencies]
 cc = "1.0"
diff --git a/lib/binding_rust/lib.rs b/lib/binding_rust/lib.rs
index 02be62f6..b40d97e5 100644
--- a/lib/binding_rust/lib.rs
+++ b/lib/binding_rust/lib.rs
@@ -1,11 +1,6 @@
 mod ffi;
 mod util;
 
-extern crate regex;
-extern crate serde;
-extern crate serde_derive;
-extern crate serde_json;
-
 #[cfg(unix)]
 use std::os::unix::io::AsRawFd;